Lock



J. P. CLEAL ANDR. E. AWDE.

LOCK.

APPLICATION FILED FEB. 2a, 1920.

Patented Nov. 8, 1921.

. 2 SHEETS-SHEET 1.

J.y P. cLEAL AND R. E. AwnE.

, LOCK.

APPLICATION FILED I'TEB. 28, 1920. 1,396,163. Patented Nov. 8, 1

2 SHEETS-snm o 14 i I 'f 2 f 5% 5. Inveuntor's.4

UNITED STATES EPATENT OFFICEQ JOSEPH PACY CLEAL AND ROBERT ENON AWDE, OF TORONTO, ONTARIO, CANADA.

Loox. Y

incense.

Specification of lLetters Patent.

Patented N ov. 8. 1921.

Application filed February 28, 1920. Serial No. 362,107.

To @ZZ whom t mag/concern."

Be it known that we, JOSEPH PAcY @LEAL and ROBERT ENoN AwDE, both subjects of the King of Great Britain, and residents of the city of Toronto, county of York, Province of Ontario, in the Dominion ofCanada, have invented certain new and useful Improvements in Locks, described in the following specification and illustrated in the accompanying drawings, that form part of the same. Y

The principal objects of this invention are, to provide a lock for sliding doors .which will lock automatically upon the closing ofthe door, holding the door very securely against being' forced open by unauthorized persons, and to` devise a structure of simple, strong and durable form which will .withstand the roughusage to' which such locks Yare subjected.

The principal feature of theinvention consists in the novel construction andarrangement of paits, whereby a recessed fastening'bolt is adapted to enter the lock and 'to engageand rotate a pivotal member t0 enter the recess and-whereby said pivotal member is locked in engagement with said tongue.

A further important feature consists in the novel construction and arrangement of the lockingtongue upon a lever Vmember whereby the tongue is housed within a recess andA pressure against the end Vofthe lever by the closing of the door swings the lever toV project the tongue intol the lock.l

In the drawings, Figure 1 vis av sectional perspective view of the lock in the unlocked positionf l Fig.` 2 is a sectional perspective view` showing the parts in the locked position.

Fig. 3 is an elevational part sectional view.

Referring to the drawings, the lock 1 is arranged either in the door or the door casing as may be'desired, the face plate2 being iush with .the edge .3 which isadaptedV to i abut vthe adjacent edge 4 of the frame of the door as the case' may be. Y Y

Within the; casingv 1 is arranged a pin 5 which extends between the sides thereof and upon this pin is pivoted the locking member 6 which .member is formed with the lug projections 7, 8 and 9.

The lugs 7 and 8 are arrangedfwithin an acute angular relationship the one to the other, meeting at their basis, the lug 8 being la latch member 14 which 'this spring is to rotate the sents a radial surface 1l.

A pair of pins 12 and 13 are secured bctween the side plates of the lock casing and upon the upper pin 12 is pivotally mounted is in the form of a hook and is adapted to engage the radial surface 10 of the lug 7 and to lock the same when in engagement therewith.

A jaw lug 15 projects downwardly from the hub and the latch member 14- and this jaw vlug is pivotally connected with a lug 16 of a pivotal dog 17 mounted upon the pin 13, said dog locking contact with the radial surface of the lug projectionv9 when the latch member 14 is in locking engagement with the lug 7.

The pin 18 connecting the jaw lug and lug 16 projects from one side of the jaw lug and is engaged by one end of the spring wire 19 which encircles the hub of the member 6, the other end engaging a pin 2O projecting from the lug 7. The tendency of member 6 on vits pivot to move the lug 7 away from the latch 14 and the lug 9 toward the dog 17 and the opposite lend of the spring exerting an outward pressure against the pin 18 holds thi:` latch 14 and dog17 in engagement with the lugs 7 .and 9 respectively and the upper surface of the dog 17 engages the curved under being adapted to' engage inl surface of the lug 9, the spring pressing l lswung downwardly.

In the front plate 21 of the lock is ar ranged a slot 22 through which the fastening 'tongue or bolt 23 enters. and below the slot is arranged a projecting stop 24 against which the radial surface 10 of the lug 7 rests when the lock is releasec.

A boss 25 is formed in the casing 1 and extends to the outward side of the pivotally connected ends of the latch 14 and dog 17 and in this boss is formed a recess 26 to receive a key. The recess may be shaped as desired with suitable wards to insure the use of a proper key but when the proper key is used the plate thereof swings inwardly and engages the pivotally connected ends of the latch and dog and presses them inwardly swinging them upon their pivots to release the locking member 6 and immediately upon said release the spring 19 rotates the member 6 on its pivot, thus withdrawing the locking member from engagement with the bolt.

The action of the lock is that as the door is closed the bolt 23 enters the slot 22 and the end thereof engaging the lug S swings the member 6 upon its pivot, thus bringingthe member 7 through the slot or recess in the bolt and as the lug 9 rotates clear past the vend of the dog 17, said dog swings into position to interlock therewith and through the in connection 18 it swings the latch 14 ownwardly to engage the latch surface 10 of the lug 7. The member 6 is thus locked securely against rotation both at the top and bottom and it will require a pressure suflicient to break the bolt 23 before the door can be opened. The proper key however will upon being inserted. swing the locking dogs upon their pivots to release the locking members 6 and the bolt is then free to be Vremoved. This bolt member may be fastened solid to the door or to the door frame as Y I may be desired, but it is preferable that such bolt should not project iro-in the door or frame such a distance as is required for locking when the door is notclosed as itl would be dangerous tov persons passing through the doorway. Y

In'orrder to eliminate this danger the bolt I tongue'28 is pivotally supported upon a lever 27 arranged within a recess 28 in the door or door frame and the lever is mounted upon a pivot 29 which is carried in suitable supports from the face plate 30.

The lower end of the lever 27 is curved outwardly and extends through a slot 31 in the lower end of the plateand projects be- A plate32 is arranged upon the opposing mem er adapted to engage the lower end oft this lever 27 and as the door'i's closed the lever is swung upon its pivot to throwfthe bolt tongue outwardly through the upper slot 33 and intogthe locking device hereinbefore described. lThe lever 27 is provided with a flat -leai spring which normally holds the tonguein the receded position."

vA lock suchV as described is extremely strong and simple and-will stand an enormous amount ci ill usage withoutgetting out oi' order. It is very lpositive and will lock the door securely against force. The form of key lock herein shown is ot the simplest kind but it will be understood that y any form of key lock may be applied thereto without interfering with the elements of the invention.

The lock boltis here shown-asV formed Vwith a Islot to receive the locking member 7 but .the structure ot' the bolt may be varied considerably as may also the detailed construction of many of the parts without detated by said bolt and having a lug adapted to be engaged and rotated by said bolt and having a lug adapted upon rotationto eX- tend through the slot, a bell crank latch member adaptedtol engage said lug Vwhen extending through said bolt, a--bell crank dog pivotally connected to said latch member, a lug` projection on-said rotatable member adapted to engage said dog when-in its locked position, spring means for .hold-- ing the pivotal connection of said latch and dog in a break joint position, and key means for breakingsaid joint to swing said latch and dog clear Aof the rotatablemember to eiiect the release of .the lock bolt.

2. In a sliding door lock, a recessed bolt y arranged in one of the *door members, ai lock casing arranged in the other ldoor member having a slot adapted to receive said bolt, a rotatable vmember in said lock casing having a pair oftransversely arranged lug proljections, one ot said lugs beingadapted to extend through the recess inthe bolt, a pair or' pivotal members adapted to engagesaid lugs in lockingV contact, and means connecting said. pair of pivotal membersv adapted to Y effect their operation in unison'to'rmove inwardly'to engage and lock said rotatable member and to moveroutwardly to release said rotatable member. ,Y l f l 3. A sliding door lock, comprising, a'slotted casing, Va rotatable memberV arranged within said .casing and having a 'projecting radial lug, a bolt adapted to engage said radial lug upon insertion .through the slot in the casing, a pivotal latch memberadapt- Y.

ed to engage and. lock. said lug-in engagement with said bolt, a spring member adapted to rotate said bolt locking member to clear the bolt and also engaging the pivotal latch member to hold it inengagement with the rotatable bolt lc'cking member, and a key means for turning` `said latchto eii'ect its release from the vvbolt locking means. c

JOSEPH PACVYYCLEAL.

' ROBERT ENON A'WDE.

iio 

